WO2013030043A2 - Moteur électrique ayant une source de courant d'essai - Google Patents

Moteur électrique ayant une source de courant d'essai Download PDF

Info

Publication number
WO2013030043A2
WO2013030043A2 PCT/EP2012/066258 EP2012066258W WO2013030043A2 WO 2013030043 A2 WO2013030043 A2 WO 2013030043A2 EP 2012066258 W EP2012066258 W EP 2012066258W WO 2013030043 A2 WO2013030043 A2 WO 2013030043A2
Authority
WO
WIPO (PCT)
Prior art keywords
semiconductor
semiconductor switch
output
test current
power output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2012/066258
Other languages
German (de)
English (en)
Other versions
WO2013030043A3 (fr
Inventor
Pascal Hiry
Stephan Urban
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to ES12751314T priority Critical patent/ES2852754T3/es
Priority to EP12751314.1A priority patent/EP2750960B1/fr
Publication of WO2013030043A2 publication Critical patent/WO2013030043A2/fr
Publication of WO2013030043A3 publication Critical patent/WO2013030043A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
    • B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
    • B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
    • B62D5/0487—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures detecting motor faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G01R31/42—AC power supplies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
    • H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage

Definitions

  • the invention relates to an electronically commutated electric motor.
  • the electronically commutated electric motor has at least two, preferably at least three stator coils and a particular permanent magnetic rotor formed.
  • the electric motor also has a power output stage with semiconductor switches, wherein the power output stage has a semiconductor switch pair for each stator coil.
  • the electric motor also has a control unit, which is connected to the power output stage and configured to drive the semiconductor switches for energizing the stator coils for generating a rotating magnetic field.
  • the power output stage has at least one semiconductor circuit breaker, in particular for each stator coil, wherein the semiconductor isolating switch connects an output of a semiconductor switch pair to an output of the power output stage, wherein the output of the power output stage is connected to a stator coil.
  • control unit of the electric motor of the type mentioned at the beginning is connected to the outputs of the semiconductor switch pairs and designed to trigger the semiconductor switches and the semiconductor isolating switches for opening.
  • control unit is further configured to feed a test current into at least one output of a semiconductor switch pair, preferably into each output of the semiconductor switch pairs.
  • control unit is designed to detect output voltage generated at an output of the power output stage and to determine a function of at least one semiconductor switch of the semiconductor switch as a function of the output voltage. This can advantageously be tested before operation of the electric motor, a function of the semiconductor switches without moving the rotor of the electric motor.
  • the test current is designed such, in particular so small that the rotor of the electric motor can not be moved by the test current.
  • the electric motor preferably has at least one voltage divider connected to the output of the power output stage.
  • the voltage divider By means of the voltage divider, the voltage dropping across the voltage divider at the output of the power output stage can be detected. This can advantageously - for example, before starting a motor vehicle, the function of the power output stage of an electric motor of a drive of an electric vehicle or a power steering are tested.
  • the semiconductor switch pairs of the power output stage preferably together form a B6 bridge.
  • the power output stage has an H-bridge for each stator coil, the H-bridge comprising two pairs of semiconductor switches whose outputs are connected to one another via the stator coil.
  • the semiconductor switch pair comprises a high-side semiconductor switch and a low-side semiconductor switch.
  • the control unit is designed to trigger all the semiconductor switches for closing the low-side semiconductor switch and to connect at least one output to at least one output
  • the control unit is designed to determine the defect of the at least one low-side semiconductor switch as a function of the test current at the output of the power output stage.
  • the control unit is preferably designed to detect an amount of reduction of the test current compared to a test current at a non-defective power output stage at the output of the power output stage and depending on the amount of a defect, in particular a short circuit, at least one low-side semiconductor switch determine.
  • the amount of the test current at the output of the power output stage is reduced by one third for a defective semiconductor switch.
  • This is effected, in particular, in the case of a stator of the electric motor connected in a star connection, in that the outputs of the power output stage are connected to each other in a low-resistance manner via the stator coils for each phase of the electric motor.
  • the output voltage which can be detected at the output of the power output stage, in the case of a defective low-side semiconductor switch two-thirds of the output voltage in intact low-side semiconductor switches and in the case of two defective low-side
  • the electric motor in particular the control unit, has a memory for data records, each data record representing a value of a specific proportion of the test current value for non-defective semiconductor switches.
  • the control unit is preferably designed to generate the test current for testing the power output stage and to detect the output voltage at the output of the power output stage and to compare the value of the output voltage with the corresponding values of the data records read from the memory and a function of the comparison result
  • control unit is designed to determine a defect of a semiconductor breaker.
  • control unit is designed to trigger a semiconductor circuit breaker to close a low-side semiconductor switch of a semiconductor switch pair for testing the semiconductor isolating switch, and to connect it to the semiconductor device.
  • terschalterrect connected semiconductor isolating switch to open and further preferably all semiconductor isolators to open to control and feed a test current into at least one output of another semiconductor switch pair of semiconductor switch pairs.
  • the control unit is preferably further configured to determine a function of the opening, in particular a defect, for example a short circuit of the semiconductor isolating switch, as a function of an amount of the test current in comparison to a test current in the case of a non-defective semiconductor isolating switch.
  • test current can advantageously flow via the body diodes of the opened semiconductor circuit breakers, into which the test current has been impressed, so that the test result is independent of a function, in particular of a defect of the remaining semiconductor circuit breakers.
  • control unit is designed to trigger a semiconductor circuit breaker for closing a semiconductor switch pair to close and to control the disconnect switch connected to the semiconductor switch pair to close, and preferably at least one other, of which connected to the closed semiconductor pair
  • Semiconductor breaker various semiconductor switch to close and feed a test current into at least one output of another semiconductor switch pair of semiconductor switch pairs and to determine depending on an amount of the test current compared to a test current at non-defective semiconductor breaker a function of closing the semiconductor breaker.
  • the invention also relates to a steering device with an electric motor of the type described above.
  • the steering device is preferably designed to generate a steering assisting steering torque by means of the electric motor.
  • the invention also relates to a method for operating an electronically commutated electric motor, in particular of the electric motor of the type described above.
  • a method for operating an electronically commutated electric motor in particular of the electric motor of the type described above.
  • at least one test current is fed into an output of a semiconductor switch pair of a power output stage of the electric motor, wherein the semiconductor switch pair comprises a high-side semiconductor switch and a low-side semiconductor switch, and an amount of over the semiconductor circuit breaker flowing test current is detected at the output of the power output stage and a defect of a semiconductor switch of the power output stage is determined as a function of the amount.
  • all semiconductor switches are preferably driven to open.
  • all semiconductor isolating switches are additionally actuated for opening.
  • the invention also relates to a method for operating an electronically commutated electric motor.
  • the electric motor has a power output stage, which has a semiconductor switch pair comprising a high-side semiconductor switch and a low-side semiconductor switch and at least one semiconductor breaker for each stator coil of the electric motor, wherein the semiconductor breaker connects an output of the semiconductor switch pair with a stator coil.
  • At least one test current is fed into an output of a semiconductor switch pair prior to operation for generating a torque, and an amount of the test current flowing across the semiconductor isolation switch is detected and a defect of a semiconductor isolation switch of the power output stage is determined as a function of the magnitude.
  • FIG. 1 shows an exemplary embodiment of an electronically commutated electric motor.
  • the electric motor 1 shows an exemplary embodiment of an electronically commutated electric motor 1.
  • the electric motor 1 has a stator 3 and a permanent magnet rotor 5.
  • the stator 3 in this embodiment comprises three stator coils, namely the stator coil 7, the stator coil 8 and the stator.
  • the electric motor 1 also has a power output stage 10.
  • the power output stage 10 is the output side via an output 12 to the stator 3, and there connected to the stator coils 7, 8 and 9.
  • the power output stage 10 is formed in this embodiment as a B6 bridge.
  • the power output stage 10 has three semiconductor switch pairs 14, 16 and 18.
  • the semiconductor switch pair 14 has a high-side semiconductor switch 20 and a low-side semiconductor switch 21.
  • the semiconductor switch pair 16 has a high-side semiconductor switch 22 and a low-side semiconductor switch 23.
  • the semiconductor switch pair 18 has a high-side semiconductor switch 24 and a low-side semiconductor switch 25.
  • MOS-FET Metal-Oxide-Field-Effect-Transistor
  • MIS-FET Metal-Insulated-Field-Effect-Transistor
  • the semiconductor switch pair 18 has an output 46, which is connected to the source terminal of the semiconductor switch 24 and to a drain terminal of the semiconductor switch 25.
  • the high-side semiconductor switches 20, 22 and 24 are each connected with their drain terminals to a terminal 48 for a DC link voltage.
  • the source terminals of the low-side semiconductor switches 21, 23 and 25 are each connected to a connection node 47, which is connected via a shunt
  • Resistor 30 is connected to a ground terminal 35.
  • the output 44 of the semiconductor switch pair 14 is connected via a semiconductor isolating switch 27 to the output 12 and there to a connection node 41.
  • the output 45 is connected via a semiconductor isolating switch 28 to the output 12 and there to a connection node 42.
  • the output 46 is connected via a semiconductor isolating switch 29 to the output 12 and there to a connection node 43.
  • the connection node 41 of the output 12 is connected to a first terminal of the stator coil 7, the connection node 42 is connected to a first terminal of the stator coil 8 and the connection node 43 of the output 12 is connected to a first terminal of the stator coil 9.
  • the second terminals of the stator coils 7, 8 and 9 are each connected to a common neutral point terminal of the stator coils. The stator coils 7, 8 and 9 are thus connected to each other in this embodiment in star connection.
  • the electric motor 1 also has a control unit 40.
  • the control unit 40 is connected on the output side via a multi-channel connection 50 in this embodiment to the power output stage 10 and there to control terminals of the semiconductor switches 20, 21, 22, 23, 24 and 25.
  • the control unit 40 is connected via the connection 50 to control terminals of the semiconductor isolation switches 27, 28 and 29.
  • the control unit 40 is connected on the input side via three voltage dividers 32, 33 and 34 to the output 12 and is designed to generate in dependence on the voltage dividers 32, 33 and 34 generated output voltages control signals for driving the semiconductor switch pairs 14, 16 and 18, so that the stator 3 of the power output stage 10 for generating a rotating magnetic field for rotating the rotor 5 can be energized.
  • the voltages detected by the voltage dividers 32, 33 and 34 during operation of the electric motor 1 represent a pulse-width-modulated drive pattern with which the stator 3 is energized by the power output stage 10, controlled by the control unit 40.
  • the stator 3 may, for example, additionally comprise a rotor position sensor (not shown) which is designed to detect a rotor position of the rotor 5 and to generate a rotor position signal representing the rotor position.
  • the rotor position sensor is connected to the control unit 40, which is designed to generate the control signals for rotating the rotor 5 as a function of the rotor position signal.
  • the control unit 40 is connected on the input side via a connecting line 51 to the connection node 47.
  • the control unit 40 is also connected to the ground terminal 35.
  • the control unit 40 is designed to detect a voltage drop across the shunt resistor 30 and represent a current flowing through the semiconductor switch pairs 14, 16 and 18.
  • the voltage divider 32 in this exemplary embodiment has two resistors connected in series and connects the connection node 43 to the ground connection 35.
  • the voltage divider 33 connects the connection node 42 to the ground connection 35, and the voltage divider 34 connects the connection node 41 to the ground connection 35.
  • the voltage divider 32 is connected on the output side via a connecting line 52 to the control unit 40.
  • the voltage divider 33 is connected on the output side via a connecting line 53 to the control unit 40.
  • the voltage divider 34 is connected on the output side via a connecting line 54 to the control unit 40.
  • the control unit 40 is the output side via a connecting line 58 with a
  • Test current source 38 of the electric motor 1 connected.
  • the test current source 38 is connected on the output side via a connecting line 55 to the output 44 of the semiconductor switch pair 14.
  • the test current source 38 is connected via a connecting line 56 to the output 45 of the semiconductor switch pair 16.
  • the test current source 38 is connected on the output side via a connecting line 57 to the output 46 of the semiconductor switch pair 18.
  • the test current source 38 is designed to generate at least one test current as a function of a control signal received via the connecting line 58 and to output this on the output side. The test current can thus be fed into an output of at least one semiconductor switch pair of the semiconductor switch pairs 14, 16 and 18.
  • the control unit 40 is designed to control the semiconductor switches of the semiconductor switch pairs 14, 16 and 18 in each case for opening in a test step.
  • the semiconductor breakers 27, 28 and 29 are operated by the control unit 40 in this
  • Test step also controlled to open.
  • the control unit 40 is designed to generate a control signal for activating the test current source 38 for testing the semiconductor switches of the semiconductor switch pairs 14, 16 and 18 and to output this via the connecting line 58. From the test current source in this test step, one test current is successively inserted into the outputs
  • the semiconductor breakers 27, 28 and 29 are each formed as a semiconductor breaker and each have a body diode.
  • the test current fed into the output 44 from the test current source 38 then flows via the body diode of the semiconductor isolating switch 27 and further via the connection node 41 to the stator coil 7 and further from the neutral connection 49 via the stator coils 8 and 9 and further via the voltage dividers 32, 33 and 34 to the ground terminal 35.
  • the voltage divider 32, 33 and 34 can then each output side produce an output signal and send it to the control unit 40 via the connecting line 54.
  • the output signal of the voltage dividers 32, 33 and 34 then represents that of the test current Source 38 generated and fed into the output 44 test current flowing through the output 12.
  • the control unit 40 is designed to compare the output signal generated by the voltage divider 32, 33 or 34 with a predetermined, stored reference data set and to control the rotor 3 to rotate the rotor 5 as a function of the comparison result.
  • the result of the comparison represents the function of the low-side semiconductor switch 21.
  • the output voltage generated by the voltage dividers 32, 33 and 34, represented by the aforementioned output signal deviates from the voltage divider starting an intact low-side
  • the control unit 40 can for this purpose have a memory 1 1, in which the data record and, for example, further data records are stored.
  • the data record 13 is designated by way of example.
  • the control unit 40 is connected to an output 59 and is designed to generate an error signal representing the defect in the event of a defective semiconductor switch of the power output stage 10 detected by the test current and to send this to the output 59.
  • the output signal generated by the voltage divider 34 corresponds to a voltage value which is represented, for example, by a data record which is stored in the memory 11.
  • the control unit 40 can read out the data record from the memory 1 1 and compare the output voltages generated by the voltage dividers 32 and / or 33 with voltage values that are represented by at least one data record stored in the memory 11 and a
  • the injected test current corresponds to a predetermined value, represented by the output signal of the voltage divider 32, 33, or 34, since the generated by the test current source 38
  • Test current which is fed into the output 44 of the semiconductor switch pair 14, via the body diode of the semiconductor breaker 27, the stator coil 7 and the - compared to the voltage dividers 32, 33 and 34 low-resistance stator coils 8 and 9 via the voltage dividers 32, 33 and the voltage divider 34 flows to the ground terminal 35.
  • the control unit 40 may be formed, for example, the Defect of a low-side semiconductor switch additionally as a function of a voltage across the shunt
  • the test current detected by the voltage dividers 32 and 33 which flows via the stator coil 7 and the voltage dividers 32, 33 and 34, is in the event of a defective low-side
  • the control unit 40 is designed to detect the defect as a function of a comparison of the output voltage generated by the voltage divider 32 and / or 33 with a voltage value represented by a data record.
  • the control unit 40 may feed a test current into the output 45 or into the output 46 in a corresponding manner for testing the low-side semiconductor switches 23 and 25.
  • the control unit can thus determine the defect of at least one low-side semiconductor switch as a function of the test current detected by means of the voltage dividers 32, 33 or 34, which flows via the output 12.
  • the control unit 40 is configured in another embodiment to energize all three outputs 44, 45 and 46 at the same time.
  • test current detected by the voltage dividers 32, 33 and 34 decreases to two-thirds of a voltage value in comparison to intact low-side semiconductor switches.
  • test current which can be detected by the voltage dividers 32, 33 and 34 at the output 12, one third of a current value in intact low-side semiconductor switches.
  • the high-side semiconductor switches 20, 22 and 24 can be tested without feeding a test current into the output 44, the output 45 and the output 46. Namely, if a high-side semiconductor switch is defective, so is the
  • the intermediate circuit voltage applied to the terminal 48 is applied to the output of the semiconductor switch pair whose high-side semiconductor switch is defective.
  • the voltages detected at the connection nodes 41, 42 and 43 by means of the voltage dividers 32, 33 and 34 must be zero or a small value. speak.
  • the voltage detected at the output 12 corresponds to the defective high-side semiconductor switch.
  • the control unit 40 is designed, for example, in the test step described above for testing the high-side semiconductor switches, not to activate the test current source 38.
  • the output voltages detected by the voltage dividers 32, 33 and 34 are then zero in the case of intact high-side semiconductor switches or corresponding to a small voltage value.
  • the control unit 40 is configured, for example, to send a control signal for generating a test current to the test current source 38 via the connecting line 58 in order to test opening of the semiconductor breakers 27, 28 and 29 of the power output stage 40.
  • the test current source 38 can then feed, for example via the connecting line 56, a test current into the output 45 of the semiconductor switch pair 16 and / or via the connecting line 57 a test current into the output 46 of the semiconductor switch pair 18.
  • Power output stage 10 are driven by the control unit 40 to open.
  • the control unit 40 is designed to determine a defect of the semiconductor breaker 27 as a function of the resulting voltage at the output 12. Namely, if the semiconductor breaker 27 is defective, that is short-circuited and can not open, the potential at the connection node 41 - and that of the connection nodes 42 and 43 via the low-resistance stator coils - pulled from the closed low-side semiconductor switch 21 to ground. At the output 12 then no or only a small voltage compared to an intact semiconductor breaker 27 can be detected.
  • the semiconductor breaker 28 may be tested to test for opening in the same manner by injecting a test current into the outputs 44 and / or 47 and closing the low-side semiconductor switch 23 of the semiconductor switch pair 16 to whose output 45 the semiconductor breaker 28 is connected.
  • the semiconductor breaker 29 can be tested for testing an opening in the same way by feeding a test current into the outputs 44 and / or 45 and closing the low-side semiconductor switch 25 of the semiconductor switch pair 18, with its output 46 of the semiconductor breaker 29 is connected ,
  • control unit 40 is configured to send a control signal for generating a test current to the test current source 38 via the connection line 58 for testing a closing of the semiconductor isolation switches 27, 28 and 29 of the power output stage 40.
  • the test current source 38 can then, for example via the connecting line 56, a test current in the output 45 of
  • the control unit 40 controls during this test step for testing the semiconductor breaker 27, the low-side semiconductor switch of the semiconductor switch pair 14, which is the output side connected to the semiconductor breaker 27, for
  • the remaining semiconductor switches of the power output stage 10 are driven by the control unit 40 to open.
  • the semiconductor breakers 27, 28 and 29 of the power output stage 10 are driven by the control unit 40 to close.
  • the control unit 40 is designed to determine a defect of the semiconductor breaker 27 as a function of the resulting voltage at the output 12. Namely, if the semiconductor breaker 27 is defective, that is high-impedance and can not close, the potential at the connection node 41 - and that of the connection nodes 42 and 43 via the low-resistance stator coils - is not pulled to ground by the closed low-side semiconductor switch 21. At the output 12, a voltage can then be detected that is greater than in comparison to an intact semiconductor breaker, namely zero or a smaller voltage value than when the semiconductor breaker 27 is defective.
  • the semiconductor breaker 28 can be tested in the same way by feeding a test current into the outputs 44 and / or 47 and closing the low-side semiconductor switch 23 of the semiconductor switch pair 16, with the output 45 of the semiconductor breaker 28 is connected.
  • the semiconductor breaker 29 can be tested in the same way by feeding a test current into the outputs 44 and / or 45 and closing the low-side semiconductor switch 25 of the semiconductor switch pair 18, with its output 46 of the semiconductor breaker 29 is connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

L'invention concerne un moteur électrique à commutation électronique. Le moteur à commutation électronique présente au moins deux bobines de stator et un rotor en particulier à aimants permanents. Le moteur électrique comprend également un étage final de puissance pourvu de commutateurs à semi-conducteurs, l'étage final de puissance présentant une paire de commutateurs à semi-conducteurs pour chaque bobine de stator. Le moteur électrique comprend aussi une unité de commande qui est reliée à l'étage final de puissance et est conçue pour commander les commutateurs à semi-conducteurs pour faire passer le courant dans les bobines de stator pour générer un champ rotatif magnétique. L'étage de sortie de puissance présente au moins un sectionneur à semi-conducteurs, en particulier pour chaque bobine de stator, le sectionneur à semi-conducteurs reliant une sortie d'une paire de commutateurs à semi-conducteurs à une sortie de l'étage final de puissance, cette dernière étant reliée à une bobine de stator. Selon l'invention, l'unité de commande du moteur électrique est reliée aux sorties de la paire de commutateurs à semi-conducteurs et est conçue pour alimenter au moins une sortie d'une paire de commutateurs à semi-conducteurs, de préférence chaque sortie de la paire de commutateurs à semi-conducteurs, avec un courant d'essai. L'unité de commande est de préférence conçue pour détecter la tension de sortie générée à une sortie de l'étage final de puissance et déterminer une fonction d'au moins un des commutateurs à semi-conducteurs en fonction de la tension de sortie.
PCT/EP2012/066258 2011-09-01 2012-08-21 Moteur électrique ayant une source de courant d'essai Ceased WO2013030043A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES12751314T ES2852754T3 (es) 2011-09-01 2012-08-21 Motor eléctrico con una fuente de corriente eléctrica de prueba
EP12751314.1A EP2750960B1 (fr) 2011-09-01 2012-08-21 Moteur électrique ayant une source de courant d'essai

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081942.8 2011-09-01
DE102011081942A DE102011081942A1 (de) 2011-09-01 2011-09-01 Elektromotor mit einer Teststromquelle

Publications (2)

Publication Number Publication Date
WO2013030043A2 true WO2013030043A2 (fr) 2013-03-07
WO2013030043A3 WO2013030043A3 (fr) 2013-11-07

Family

ID=46754429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/066258 Ceased WO2013030043A2 (fr) 2011-09-01 2012-08-21 Moteur électrique ayant une source de courant d'essai

Country Status (4)

Country Link
EP (1) EP2750960B1 (fr)
DE (1) DE102011081942A1 (fr)
ES (1) ES2852754T3 (fr)
WO (1) WO2013030043A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580582A (zh) * 2012-08-06 2014-02-12 罗伯特·博世有限公司 用于电机的控制单元
US20220371655A1 (en) * 2021-05-24 2022-11-24 Mando Corporation Steering assist device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023205433A1 (de) 2023-06-12 2024-12-12 Robert Bosch Gesellschaft mit beschränkter Haftung Elektrische Maschine mit einem Leistungsendstufentest

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359235B3 (de) * 2003-12-17 2005-05-25 Siemens Ag Verfahren und Anordnung zur Prüfung einer Leistungsendstufe
JP2009035155A (ja) * 2007-08-02 2009-02-19 Denso Corp 電動パワーステアリング装置
DE102007051004B4 (de) * 2007-10-26 2010-04-08 Continental Automotive Gmbh Verfahren zur Vorrichtung zur Detektion und Lokalisierung von Fehlern in einem Umrichter und/oder einer elektrischen Maschine eines elektrischen Antriebs
JP2009274686A (ja) * 2008-05-19 2009-11-26 Nsk Ltd 電動パワーステアリング装置
JP5083305B2 (ja) * 2009-12-24 2012-11-28 株式会社デンソー 電動機駆動装置、および、これを用いた電動パワーステアリング装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580582A (zh) * 2012-08-06 2014-02-12 罗伯特·博世有限公司 用于电机的控制单元
US20220371655A1 (en) * 2021-05-24 2022-11-24 Mando Corporation Steering assist device
US12145666B2 (en) * 2021-05-24 2024-11-19 Hl Mando Corporation Steering assist device

Also Published As

Publication number Publication date
EP2750960B1 (fr) 2020-11-25
WO2013030043A3 (fr) 2013-11-07
EP2750960A2 (fr) 2014-07-09
ES2852754T3 (es) 2021-09-14
DE102011081942A1 (de) 2013-03-07

Similar Documents

Publication Publication Date Title
EP2415165A1 (fr) Moteur électrique à commutation électronique avec une propriété de fonctionnement d'urgence
EP3316477A1 (fr) Procédé de simulation d'un moteur électrique triphasé à l'aide d'un émulateur de charge et émulateur de charge correspondant
EP2750960B1 (fr) Moteur électrique ayant une source de courant d'essai
EP2532086B1 (fr) Circuit et procédé pour faire fonctionner le circuit
DE102017212568A1 (de) Elektrische Maschine
DE102010000852A1 (de) Verfahren zum Betrieb eines bürstenlosen Motors
EP2729344B1 (fr) Moteur électrique à commutation électronique présentant une fonction de déconnexion en cas de défaut
DE3513167C2 (de) Ansteuerungsschaltung für kollektorlose Gleichstrommotoren
DE10359236B3 (de) Anordnung zur Prüfung einer Leistungsendstufe
DE102004007209B4 (de) Schaltungsanordnung und Verfahren zur Ermittlung des Laststromes durch eine getaktet an eine Versorgungsspannung angelegte induktive Last
DE102007063386A1 (de) Verfahren zur Bestimmung von elektrischen Rotorpositionen in elektrischen Maschinen mit Vorrichtungen zur Kommutierung und Positionserkennung
DE102010060102A1 (de) Antrieb für ein Kraftfahrzeugbauteil mit wenigstens zwei mechanisch parallel wirkenden Antriebsmotoren
EP1444782B1 (fr) Dispositif de commande d'une charge electrique et appareil de commande
DE102004055156A1 (de) Vorrichtung und Verfahren zur Bestimmung der Drehstellung, zum Starten, zur weiteren Kommutierung und zur Überstromerkennung eines bürstenlosen Gleichstrommotos
DE102008043134A1 (de) Gleichstrommotor und Verfahren zum Betreiben des Gleichstrommotors
DE102005028058B3 (de) Antrieb zum Betätigen eines beweglichen Flügels, insbesondere einer Tür
DE102008043114A1 (de) Steuervorrichtung für einen elektronisch kommutierten Elektromotor, Elektromotor und Verfahren
DE102010010646A1 (de) Motorsteuerung
WO2017063834A1 (fr) Agencement et procédé de détection d'une interruption de ligne électrique lors du fonctionnement d'un système d'entrainement
EP2338065A1 (fr) Procédé et dispositif pour le diagnostic de défauts de liaison entre un circuit d'attaque et une machine électrique
DE19805658A1 (de) Verfahren zur Erkennung von Fehlschaltungen eines ersten Relais
EP2009794B1 (fr) Relais de coupure
DE102018105381A1 (de) Verfahren zur Erkennung eines Kurzschlusses eines mechatronischen Kupplungsaktors in einem Fahrzeug
DE102007060949A1 (de) Schaltung mit Clamp-Kondensator zur Drehzahlmessung einer elektrischen Maschine
DE294613C (fr)

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2012751314

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12751314

Country of ref document: EP

Kind code of ref document: A2